DTC Summary
WARNING: This page is about a different car, the 2024 Lexus TX 500h. However, it is still accessible from the selected car via links, so may be relevant.
- MALFUNCTION DESCRIPTION
The hybrid vehicle control ECU assembly detects malfunctions which prevent the EV motor control inverter assembly emergency shutdown circuit (HSD2) from shutting down the hybrid control system. Detection is performed when the ignition switch is turned on (IG) and during the shutdown sequence when the ignition switch is turned off.
The cause of this malfunction may be one of the following:
Hybrid vehicle control ECU assembly and EV motor control inverter assembly shutdown circuit malfunction
- Hybrid vehicle control ECU assembly malfunction
- Connector or wire harness malfunction
- EV motor control inverter assembly malfunction